A roll-to-roll board joint detection device

Abstract

This utility model relates to a roll-to-roll sheet joint detection device, comprising: a fixed base; a clamping fixing seat disposed on the fixed base; a sheet material channel, including a fixed roller and a movable roller, the fixed roller being disposed on the fixed base, and the movable roller being slidably connected to the fixed base via a movable bracket, with the movable roller and fixed roller being arranged opposite each other, forming a gap between them for the sheet material to pass through continuously; a contact spring fixedly disposed on the sheet material channel; a detection micrometer head disposed on the fixed base via a mounting bracket; the detection micrometer head and the contact spring are respectively connected to an audible and visual alarm via wires, forming an electrical circuit; when a sheet material joint with a thickness greater than the gap of the sheet material channel passes through the sheet material channel, the contact spring is pushed up and contacts the detection micrometer head, closing the electrical circuit, thereby triggering the audible and visual alarm to emit an audible and visual alarm signal. This utility model converts the thickness change of the sheet material into a switching signal, realizing rapid detection of sheet material joints and eliminating the problem of manual missed detection.

Description

Technical Field

[0001] This utility model relates to the field of online detection technology, and in particular to a detection device for roll-to-roll sheet joints. Background Technology

[0002] In roll-to-roll continuous electroplating production lines, when a roll of substrate is about to run out, the end of the old strip needs to be temporarily overlapped with the beginning of the new strip, forming a "joint" that is 0.1–0.3 mm thicker than the normal strip. If this joint is not identified and removed in time, it will be wound up with the finished roll. Due to the lack of reliable online inspection methods, actual production generally relies on manual visual inspection, leading to the following long-standing problems: Missed joint inspection leads to customer issues: After the joint is included in the finished roll, it is delivered with the goods. During downstream cutting or stamping, the sudden change in thickness causes the carbide blade to break. The cost of replacing the blade once is about 20,000 to 30,000 yuan, and it also causes customers to stop production and complain.

[0003] Manual rewinding poses significant safety hazards: If a missed inspection is discovered within the factory, 1-2 operators must manually rewind and pull out the joint of a roll weighing over 200 kg. This process is physically demanding and can easily lead to accidents such as back sprains and injuries from the roll tipping over.

[0004] Reverse winding damages coating quality: The surface of the pre-plated board has a high-value-added functional coating. Reverse winding causes secondary bending and friction, resulting in scratches, pinholes or color differences in the coating, increasing the downgrade rate by 3-5% and directly increasing scrap costs. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a roll-to-roll sheet joint detection device that is simple in structure, low in cost, and can replace manual visual inspection, thus avoiding the above-mentioned missed inspections, safety and quality risks.

[0006] To solve the above-mentioned technical problems, this utility model provides a roll-to-roll sheet joint detection device, comprising: Fixed base; A clamping and fixing seat is provided on the fixing base for mounting the detection device on the frame of the receiving buffer machine; The sheet material channel includes a fixed roller and a movable roller. The fixed roller is disposed on the fixed base, and the movable roller is slidably connected to the fixed base through a movable bracket. The movable roller and the fixed roller are disposed opposite to each other, and a gap is formed between them for the sheet material to pass through continuously. The contact spring is fixedly mounted on the plate channel; The detection micrometer head is mounted on the fixed base via a mounting bracket; the detection micrometer head and the contact spring are respectively connected to the two input terminals of the audible and visual alarm via wires to form an electrical circuit. When a plate joint with a thickness greater than the gap of the plate channel passes through the plate channel, the movable roller is displaced, causing the contact spring to be lifted and contact the detection micrometer head, thereby closing the electrical circuit and triggering the audible and visual alarm to emit an audible and visual alarm signal.

[0007] In one embodiment of this utility model, the fixed base includes a fixed plate, an angle fine-tuning plate, a longitudinal adjustment plate, and a longitudinal adjustment plate. The angle fine-tuning plate is disposed between the fixed plate and the longitudinal adjustment plate. The longitudinal adjustment plate is perpendicular to the fixed plate. The clamping and fixing seat is fixedly disposed on the longitudinal adjustment plate.

[0008] In one embodiment of this utility model, a reinforcing connector is provided between the fixing plate and the longitudinal adjusting plate.

[0009] In one embodiment of this utility model, one end of the angle fine-tuning plate is connected to the fixing plate by a first locking screw, and the other end is provided with an angle adjustment groove. A second locking screw passes through the angle adjustment groove to fix the angle fine-tuning plate to the fixing plate. The installation angle of the angle fine-tuning plate on the fixing plate is achieved by adjusting the position of the second locking screw in the angle adjustment groove. In one embodiment of this utility model, a longitudinal adjustment groove is provided on the longitudinal adjustment plate, and a third locking screw passes through the longitudinal adjustment groove to fix the longitudinal adjustment plate to the angle fine adjustment plate. The longitudinal position of the longitudinal adjustment plate on the angle fine adjustment plate is achieved by adjusting the position of the third locking screw in the longitudinal adjustment groove. In one embodiment of this utility model, the horizontal adjustment plate is provided with a horizontal adjustment groove, and the fourth locking screw passes through the horizontal adjustment groove to fix the clamping fixing seat to the horizontal adjustment plate.

[0010] In one embodiment of the present invention, the clamping and fixing seat includes a first clamping plate, a second clamping plate, and a locking screw. The first clamping plate and the second clamping plate are arranged opposite to each other and are connected by the locking screw. Limiting blocks are provided on the inner sides of the first clamping plate and the second clamping plate to abut against the square tube on the frame, so as to enhance the firmness of the connection between the clamping and fixing seat and the frame.

[0011] In one embodiment of this utility model, the mounting bracket includes a support frame, a micrometer head mounting plate, and a spring screw. The support frame is vertically mounted on the fixed base, and the micrometer head mounting plate is fastened to the top of the support frame. The micrometer head mounting plate is connected to the support frame by the spring screw. By adjusting the spring screw, a constant elastic force is applied to the detection micrometer head, thereby adjusting the gap between the detection micrometer head and the contact spring.

[0012] In one embodiment of the present invention, the movable bracket includes a slider and a bracket body. A linear slide rail is provided between the slider and the fixed base, and the slider is slidably connected to the linear slide rail. The bracket body is fixedly mounted on the slider.

[0013] In one embodiment of this utility model, both the contact spring and the detection differential head are provided with conductive terminals.

[0014] In one embodiment of this utility model, a reinforcing connector is provided between the fixed base and the clamping fixed base.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects: The roll-to-roll sheet joint detection device of this utility model utilizes the mechanical-electrical linkage between the movable roller, the contact spring, and the detection micrometer head to directly convert thickness jumps into switching signals. It has a simple structure, low cost, and fast response time, enabling rapid detection of sheet joints and completely eliminating the problem of manual omissions. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. Figure 1 This is a schematic diagram of the roll-to-roll sheet joint detection device in a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the fixed base of this utility model; Figure 3 This is a schematic diagram of the clamping and fixing base of this utility model; Figure 4 This is a schematic diagram of the mounting bracket of this utility model; Figure 5 This is a schematic diagram of the structure of the plate channel, longitudinal adjustment plate, contact spring, detection micrometer head and mounting bracket of this utility model; Explanation of reference numerals in the accompanying drawings: 1. Fixed base; 11. Fixed plate; 12. Angle fine-tuning plate; 121. Angle adjustment groove; 13. Longitudinal adjustment plate; 131. Longitudinal adjustment groove; 14. Transverse adjustment plate; 141. Transverse adjustment groove; 15. Reinforcing connector; 2. Clamping fixed base; 21. First clamping plate; 211. Limiting block; 22. Second clamping plate; 23. Locking screw; 3. Plate channel; 31. Fixed roller; 32. Movable roller; 33. Movable bracket; 331. Slider; 332. Bracket body; 333. Linear slide rail; 4. Contact spring; 5. Detection micrometer head; 6. Mounting bracket; 61. Support frame; 62. Micrometer head mounting plate; 63. Spring screw. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0018] Reference Figure 1 As shown, this utility model discloses a roll-to-roll sheet joint detection device, comprising: a fixed base 1; a clamping fixed base 2, disposed on the fixed base 1, for mounting the detection device on the frame of a receiving buffer machine; and a sheet material channel 3, comprising a fixed roller 31 and a movable roller 32, wherein the fixed roller 31 is disposed on the fixed base 1, and the movable roller 32 is slidably connected to the fixed base 1 via a movable bracket 33, and the movable roller 32 is disposed opposite to the fixed roller 31, forming a gap between them for the sheet material to pass through continuously; additionally... Both the fixed roller 31 and the movable roller 32 are fitted with silicone sleeves on their outer sides; the contact spring 4 is fixedly mounted on the plate channel 3; the detection micrometer head 5 is mounted on the fixed base 1 via the mounting bracket 6; the detection micrometer head 5 and the contact spring 4 are respectively connected to the two input terminals of the audible and visual alarm via wires to form an electrical circuit; wherein, both the contact spring 4 and the detection micrometer head 5 are provided with conductive terminals; the conductive terminals are directly riveted to the contact spring 4 and the detection micrometer head 5, eliminating the need for soldering in the field wiring and allowing for plug-in connection; When a plate joint with a thickness greater than the gap of the plate channel 3 passes through the plate channel 3, the movable roller 32 is displaced, causing the contact spring 4 to be lifted and come into contact with the detection micrometer head 5, thereby closing the electrical circuit and triggering the audible and visual alarm to emit an audible and visual alarm signal.

[0019] like Figure 2 As shown, the fixed base 1 includes a fixed plate 11, an angle fine-tuning plate 12, a longitudinal adjustment plate 13, and a transverse adjustment plate 14. The angle fine-tuning plate 12 is disposed between the fixed plate 11 and the longitudinal adjustment plate 13. The transverse adjustment plate 14 is perpendicular to the fixed plate 11. The clamping and fixing seat 2 is fixedly disposed on the transverse adjustment plate 14. Through the four-layer superimposed structure of the fixed plate 11, angle fine-tuning plate 12, longitudinal adjustment plate 13, and transverse adjustment plate 14, the adjustment of the three degrees of freedom of angle, transverse, and vertical is integrated into the same base. On-site installation can be completed in one go without additional tooling, reducing installation time. Moreover, after locking, it has high rigidity and does not drift under vibration.

[0020] Furthermore, a reinforcing connector 15 is provided between the fixed plate 11 and the transverse adjustment plate 14. The reinforcing connector 15 connects the clamping fixing seat 2 and the fixed base 1 to form a closed triangular frame, which can reduce the resonance amplitude in the vibration environment of the high-speed production line and completely eliminate the problems of fretting wear and screw loosening caused by resonance.

[0021] One end of the angle adjustment plate 12 is connected to the fixed plate 11 by a first locking screw, and the other end is provided with an angle adjustment groove 121. A second locking screw passes through the angle adjustment groove 121 to fix the angle adjustment plate 12 to the fixed plate 11. The installation angle of the angle adjustment plate 12 on the fixed plate 11 is adjusted by adjusting the position of the second locking screw in the angle adjustment groove 121. When the angle adjustment plate 12 needs to be adjusted, the first locking screw needs to be loosened, the position of the angle adjustment plate 12 needs to be rotated, and finally the position of the second locking screw in the angle adjustment groove 121 needs to be adjusted to lock the angle adjustment plate 12 in place. Because the angle adjustment groove 121 has a self-locking wedge effect, it can operate for a long time without loosening after being locked. Preferably, the angle adjustment groove 121 is an arc-shaped elongated slot.

[0022] A longitudinal adjustment groove 131 is provided on the longitudinal adjustment plate 13. A third locking screw passes through the longitudinal adjustment groove 131 to fix the longitudinal adjustment plate 13 to the angle fine adjustment plate 12. The longitudinal position of the longitudinal adjustment plate 13 on the angle fine adjustment plate 12 is achieved by adjusting the position of the third locking screw in the longitudinal adjustment groove 131. The lateral adjustment plate 14 is provided with a lateral adjustment groove 141. The fourth locking screw passes through the lateral adjustment groove 141 to fix the clamping fixing seat 2 to the lateral adjustment plate 14. The lateral position of the lateral adjustment plate 14 on the fixing plate 11 is achieved by adjusting the position of the fourth locking screw in the lateral adjustment groove 141. like Figure 3 As shown, the clamping and fixing base 2 includes a first clamping plate 21, a second clamping plate 22, and a locking screw 23. The first clamping plate 21 and the second clamping plate 22 are arranged opposite to each other and are connected by the locking screw 23. Limiting blocks 211 are provided on the inner sides of both the first clamping plate 21 and the second clamping plate 22 to abut against the square tube on the frame, thereby enhancing the firmness of the connection between the clamping and fixing base 2 and the frame.

[0023] like Figure 4As shown, the mounting bracket 6 includes a support frame 61, a micrometer head mounting plate 62, and a spring screw 63. The support frame 61 is vertically mounted on the fixed base 1. The micrometer head mounting plate 62 is fastened to the top of the support frame 61, and the connection between the micrometer head mounting plate 62 and the support frame 61 is achieved by the spring screw 63. By adjusting the spring screw 63, a constant elastic force is applied to the detection micrometer head 5, thereby adjusting the gap between the detection micrometer head 5 and the contact spring 4. The spring screw 63 applies a constant elastic force to the detection micrometer head 5, ensuring reliable contact when the plate joint passes through and preventing overpressure scratches on the coating. At the same time, the spring screw 63 can absorb mechanical impact, thus improving the lifespan of the detection micrometer head 5. When the movable roller 32 is springed back, the spring screw 63 contacts the contact spring 4, thereby resetting the movable roller 32.

[0024] like Figure 5 As shown, the movable support 33 includes a slider 331 and a support body 332. A linear slide rail 333 is provided between the slider 331 and the fixed base 1, and the slider 331 is slidably connected to the linear slide rail 333. The support body 332 is fixedly mounted on the slider 331. The cooperation between the slider 331 and the linear slide rail 333 realizes the linear displacement adjustment of the movable roller 32.

[0025] In the above-described roll-to-roll sheet joint detection device, under normal conditions, the sheet continuously passes through the preset gap between the fixed roller 31 and the movable roller 32, and the contact spring 4 maintains an insulating distance from the detection micro-head 5, thus disconnecting the circuit of the audible and visual alarm. When a sheet joint with increased thickness passes between the fixed roller 31 and the movable roller 32, the movable roller 32 is lifted and moves along the linear slide rail 333, simultaneously lifting the contact spring 4 to close it with the detection micro-head 5, instantly connecting the electrical circuit. The audible and visual alarm immediately emits an audible and visual signal to prompt the operator to cut off the sheet joint, and the operator manually turns off the audible and visual alarm. After the sheet joint passes, the movable roller 32 falls back under its own weight and the constant elastic preload of the spring screw 63, the contact spring 4 separates from the detection micro-head 5 again, the circuit is disconnected, the contact spring 4 resets, and a rapid, non-contact, vibration-resistant online joint detection cycle is completed.

[0026] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A device for detecting roll-to-roll sheet joints, characterized in that, include: Fixed base; A clamping and fixing seat is provided on the fixing base for mounting the detection device on the frame of the receiving buffer machine; The sheet material channel includes a fixed roller and a movable roller. The fixed roller is disposed on the fixed base, and the movable roller is slidably connected to the fixed base through a movable bracket. The movable roller and the fixed roller are disposed opposite to each other, and a gap is formed between them for the sheet material to pass through continuously. The contact spring is fixedly mounted on the plate channel; The detection micrometer head is mounted on the fixed base via a mounting bracket; the detection micrometer head and the contact spring are respectively connected to the two input terminals of the audible and visual alarm via wires to form an electrical circuit. When a plate joint with a thickness greater than the gap of the plate channel passes through the plate channel, the movable roller is displaced, causing the contact spring to be lifted and contact the detection micrometer head, thereby closing the electrical circuit and triggering the audible and visual alarm to emit an audible and visual alarm signal.

2. The roll-to-roll sheet joint detection device according to claim 1, characterized in that, The fixed base includes a fixed plate, an angle fine-tuning plate, a longitudinal adjustment plate, and a transverse adjustment plate. The angle fine-tuning plate is disposed between the fixed plate and the longitudinal adjustment plate. The transverse adjustment plate is disposed perpendicular to the fixed plate. The clamping and fixing seat is fixedly disposed on the transverse adjustment plate.

3. The roll-to-roll sheet joint detection device according to claim 2, characterized in that: A reinforcing connector is provided between the fixing plate and the clamping fixing seat.

4. The roll-to-roll sheet joint detection device according to claim 3, characterized in that, One end of the angle adjustment plate is connected to the fixed plate by a first locking screw, and the other end is provided with an angle adjustment groove. A second locking screw passes through the angle adjustment groove to fix the angle adjustment plate to the fixed plate. The installation angle of the angle adjustment plate on the fixed plate can be achieved by adjusting the position of the second locking screw in the angle adjustment groove.

5. The roll-to-roll sheet joint detection device according to claim 4, characterized in that, The longitudinal adjustment plate is provided with a longitudinal adjustment groove, and the third locking screw passes through the longitudinal adjustment groove to fix the longitudinal adjustment plate to the angle fine adjustment plate. The longitudinal position of the longitudinal adjustment plate on the angle fine adjustment plate is achieved by adjusting the position of the third locking screw in the longitudinal adjustment groove.

6. The roll-to-roll sheet joint detection device according to claim 5, characterized in that, The horizontal adjustment plate is provided with a horizontal adjustment groove, and the fourth locking screw passes through the horizontal adjustment groove to fix the clamping and fixing seat to the horizontal adjustment plate.

7. The roll-to-roll sheet joint detection device according to claim 1, characterized in that, The clamping and fixing base includes a first clamping plate, a second clamping plate, and a locking screw. The first clamping plate and the second clamping plate are arranged opposite to each other and are connected by the locking screw. Limiting blocks are provided on the inner sides of the first clamping plate and the second clamping plate to abut against the square tube on the frame, so as to enhance the firmness of the connection between the clamping and fixing base and the frame.

8. The roll-to-roll sheet joint detection device according to claim 1, characterized in that, The mounting bracket includes a support frame, a micrometer head mounting plate, and a spring screw. The support frame is vertically mounted on the fixed base. The micrometer head mounting plate is fastened to the top of the support frame. The micrometer head mounting plate is connected to the support frame by the spring screw. By adjusting the spring screw, a constant elastic force is applied to the detection micrometer head, thereby adjusting the gap between the detection micrometer head and the contact spring.

9. The roll-to-roll sheet joint detection device according to claim 1, characterized in that, The movable support includes a slider and a support body. A linear slide rail is provided between the slider and the fixed base, and the slider is slidably connected to the linear slide rail. The support body is fixedly mounted on the slider.

10. The roll-to-roll board joint inspection apparatus according to claim 1, characterized in that: The contact spring and the detection micro-differential head are both provided with conductive connection terminals.

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